:root {
  --bg: #f6f0e7;
  --panel: #fff7ec;
  --ink: #2a241d;
  --muted: #6e6256;
  --accent: #f0822e;
  --accent-dark: #c75a11;
  --shadow: 0 20px 40px rgba(53, 37, 23, 0.12);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Space Grotesk", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top, #ffd7b8 0%, #f9efe4 48%, #e8f2ea 100%),
    var(--bg);
  display: flex;
  flex-direction: column;
  touch-action: none;
  overscroll-behavior: none;
}

button {
  font: inherit;
  border: none;
  border-radius: 999px;
  padding: 8px 16px;
  cursor: pointer;
  background: #efe2d6;
  color: var(--ink);
  box-shadow: 0 10px 18px rgba(60, 40, 20, 0.15);
}

.back-btn {
  padding: 6px 12px;
  font-size: 12px;
}

.topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 20px;
}

.title-main {
  font-size: 22px;
  font-weight: 700;
}

.title-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.title-sub {
  font-size: 13px;
  color: var(--muted);
}

.stats {
  display: flex;
  gap: 16px;
  font-weight: 600;
  align-items: center;
}

.stars {
  display: inline-flex;
  gap: 4px;
}

.star {
  color: #f2b933;
  text-shadow: 0 6px 14px rgba(242, 185, 51, 0.35);
}

.star.dim {
  color: #c9c3b8;
  text-shadow: none;
}

.coin-block {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.coin-icon {
  width: 16px;
  height: 16px;
  background: url("assets/td/coin.svg") center/contain no-repeat;
  display: inline-block;
}

.tools {
  display: flex;
  gap: 8px;
  align-items: center;
}

.tool-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  background: #f3e4d5;
  box-shadow: 0 8px 14px rgba(90, 60, 30, 0.18);
  font-size: 12px;
}

.tool-btn.disabled {
  opacity: 0.45;
  filter: grayscale(0.6);
  cursor: not-allowed;
  box-shadow: none;
}

.tool-icon {
  width: 20px;
  height: 20px;
  background-position: center;
  background-repeat: no-repeat;
  background-size: contain;
}

.flashlight-icon {
  background-image: url("assets/wordsearch/flashlight.svg");
}

.speaker-icon {
  background-image: url("assets/wordsearch/speaker.svg");
}

.xray-icon {
  background-image: url("assets/wordsearch/xray.svg");
}

.hand-icon {
  background-image: url("assets/wordsearch/hand.svg");
}

.bomb-icon {
  background-image: url("assets/wordsearch/bomb.svg");
}

.radar-icon {
  background-image: url("assets/wordsearch/radar.svg");
}

.tool-cost {
  color: #6e4c2a;
  font-weight: 700;
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 240px;
  gap: 16px;
  padding: 0 20px 20px;
  flex: 1;
}

.grid-panel {
  position: relative;
  background: linear-gradient(180deg, #fffaf2, #f2e5d6);
  border-radius: 20px;
  box-shadow: var(--shadow);
  padding: 12px;
  overflow: hidden;
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  grid-template-rows: repeat(12, minmax(0, 1fr));
  gap: 4px;
  width: 100%;
  height: min(70vh, 80vw);
  max-height: 70vh;
  margin: 0 auto;
}

.grid.xray {
  filter: grayscale(1) brightness(0.92);
}

.grid-cell {
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #3a2a1c;
  font-size: clamp(14px, 2.4vw, 18px);
  user-select: none;
}

.grid.xray .grid-cell {
  background: rgba(205, 205, 205, 0.6);
  color: rgba(80, 80, 80, 0.45);
}

.grid.xray .grid-cell.empty {
  background: rgba(200, 200, 200, 0.3);
  color: transparent;
}

.grid-cell.empty {
  background: rgba(255, 255, 255, 0.4);
  color: transparent;
}

.grid-cell.selecting {
  background: #ffe4c4;
  color: #a14c16;
}

.grid-cell.found {
  background: var(--found-bg, #d6f5dc);
  color: var(--found-ink, #2f7d3f);
}

.grid-cell.flash {
  animation: flash-cell 0.45s ease-in-out;
}

.grid-cell.xray-cell {
  outline: 2px solid rgba(255, 255, 255, 0.6);
}

.grid.xray .grid-cell.xray-cell {
  background: #2f2f2f;
  color: #fff;
  outline: 2px solid rgba(255, 255, 255, 0.9);
  text-shadow: 0 2px 8px rgba(255, 255, 255, 0.35);
}

.grid-cell.hand {
  background-image: url("assets/wordsearch/hand.svg");
  background-repeat: no-repeat;
  background-position: center;
  background-size: 50%;
}

.grid-cell.announce {
  background: #fff0c7;
  color: #a85a16;
}

.firework-layer {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 5;
}

.firework {
  position: absolute;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--fw-color);
  box-shadow:
    0 -40px 0 var(--fw-color),
    0 40px 0 var(--fw-color),
    40px 0 0 var(--fw-color),
    -40px 0 0 var(--fw-color),
    30px 30px 0 var(--fw-color),
    -30px 30px 0 var(--fw-color),
    30px -30px 0 var(--fw-color),
    -30px -30px 0 var(--fw-color);
  transform: translate(-50%, -50%) scale(0.3);
  animation: firework-burst 1.2s ease-out forwards;
}

@keyframes firework-burst {
  0% {
    opacity: 0.9;
    transform: translate(-50%, -50%) scale(0.3);
  }
  100% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(1.6);
  }
}

@keyframes flash-cell {
  0% {
    background: #fff1b8;
  }
  50% {
    background: #f0822e;
    color: #fff;
  }
  100% {
    background: #fff1b8;
  }
}

.message {
  margin-top: 10px;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.85);
  color: var(--muted);
  font-size: 13px;
}

.word-panel {
  background: var(--panel);
  border-radius: 18px;
  padding: 14px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.panel-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--muted);
}

.word-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.word-item {
  padding: 8px 12px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.7);
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease;
}

.word-item:hover {
  transform: translateY(-2px);
}

.word-item.found {
  background: #d6f5dc;
  color: #2f7d3f;
}

@media (max-width: 900px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .grid {
    height: min(70vh, 90vw);
  }
}

@media (max-width: 640px) and (orientation: portrait) {
  body {
    touch-action: manipulation;
  }

  .topbar {
    padding: 12px 14px;
    gap: 10px;
  }

  .title-main {
    font-size: 18px;
  }

  .title-sub {
    font-size: 12px;
  }

  .stats {
    flex-wrap: wrap;
    gap: 10px;
    font-size: 13px;
  }

  .tools {
    flex-wrap: wrap;
    gap: 6px;
  }

  .tool-btn {
    font-size: 11px;
    padding: 4px 8px;
  }

  .layout {
    padding: 0 12px 12px;
    gap: 12px;
  }

  .grid {
    height: min(62vh, 92vw);
    gap: 3px;
  }

  .grid-cell {
    font-size: clamp(12px, 3.6vw, 16px);
  }

  .word-panel {
    padding: 12px;
  }
}